This is a preview. Log in through your library . Abstract A technique for the artificial infection of the snail Helix aspersa by its parasite the nematode Nemhelix bakeri is described. The snail is ...
2004-11-07 04:00:00 PDT Protem , Mo.-- More than 170 feet below the surface, Tom Aley feels his way through a pitch-black cave, searching for a blind snail no bigger than a grain of sand. The air is ...
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